Welcome to Question.com Skip directly to: Search Box, Site Navigation, Content.

 
 

Adder

Related Category: Vertebrate Zoology

see viper.

More on Adder

Viper - any of a large number of heavy-bodied, poisonous snakes of the family Viperidae, characterized by erectile, hypodermic fangs. The fangs are folded back against the roof of the mouth except when the sn...